Comment #10 on issue 3224 by Benjamin.VanRyseghem.Pharo: Migrating MethodReference to MethodReferenceWithSource
http://code.google.com/p/pharo/issues/detail?id=3224
We can blindly replace MethodReference by SourcedMethodReference in methods which create new objects, but as long as MethodReference objects are living in the system, we can't blindly replace the methods which use MethodReference objects ... Moreover, a lot of such method use methods like isKindOf: etc.
